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Nils-Halvdan Morken's picture

Nils-Halvdan Morken

Professor
  • E-mailnils-halvdan.morken@uib.no
  • Visitor Address
    Glasblokkene blokk 1
    Haukelandsbakken 15
    5021 Bergen
    Room 
    5152
  • Postal Address
    Postboks 7804
    5020 Bergen
  • Show author(s) (2023). Wrapping up eight years of editing in a healthy medical journal. Acta Obstetricia et Gynecologica Scandinavica. 238-239.
  • Show author(s) (2023). Unveiling sex bias and adverse neonatal outcomes in ultrasound estimation of gestational age: A population-based cohort study. Paediatric and Perinatal Epidemiology.
  • Show author(s) (2023). The relationship between cesarean delivery and fecundability: a population-based cohort study. American Journal of Obstetrics and Gynecology. 1-21.
  • Show author(s) (2023). Risk of adverse pregnancy outcomes in twin- and singleton-born women: An inter-generational cohort study. BJOG: An International Journal of Obstetrics and Gynaecology. 9 pages.
  • Show author(s) (2023). Risk of Subsequent Preeclampsia by Maternal Country of Birth: A Norwegian Population-Based Study. International Journal of Environmental Research and Public Health (IJERPH). 11 pages.
  • Show author(s) (2023). Pregnancy complications in last pregnancy and mothers’ long-term cardiovascular mortality: does the relation differ from that of complications in first pregnancy? A population-based study. BMC Women's Health. 8 pages.
  • Show author(s) (2023). Pregestational maternal risk factors for preterm and term preeclampsia: A population-based cohort study. Acta Obstetricia et Gynecologica Scandinavica.
  • Show author(s) (2023). Paternal and maternal birthweight and offspring risk of macrosomia at term gestations: A nationwide population study. Paediatric and Perinatal Epidemiology. 10 pages.
  • Show author(s) (2023). Migration-related risk factors and perinatal outcomes A national population-based study of immigrant and non-immigrant women in Norway.
  • Show author(s) (2023). Birthweight of the subsequent singleton pregnancy following a first twin or singleton pregnancy. Acta Obstetricia et Gynecologica Scandinavica. 1674-1681.
  • Show author(s) (2023). Birth Weight in Consecutive Pregnancies and Maternal Cardiovascular Disease Mortality Among Spontaneous and Iatrogenic Term Births: A Population-Based Cohort Study. American Journal of Epidemiology. 1326-1334.
  • Show author(s) (2022). Use of antihistamines before or during pregnancy and risk of early-onset pre-eclampsia in allergic women: a population-based cohort study. BMJ Open. 1-8.
  • Show author(s) (2022). Rsik of Recurrent Preeclampsia by Maternal Region of Birth: A Nationwide Population-based Study .
  • Show author(s) (2022). Quantitative User Data From a Chatbot Developed for Women With Gestational Diabetes Mellitus: Observational Study. JMIR Formative Research. 12 pages.
  • Show author(s) (2022). Preconception leisure-time physical activity and family history of stroke and myocardial infarction associate with preterm delivery: findings from a Norwegian cohort. BMC Pregnancy and Childbirth. 9 pages.
  • Show author(s) (2022). Long-term cardiovascular mortality in women with twin pregnancies by lifetime reproductive history. Paediatric and Perinatal Epidemiology. 1-9.
  • Show author(s) (2022). Is the increasing prevalence of labor induction accompanied by changes in pregnancy outcomes? An observational study of all singleton births at gestational weeks 37–42 in Norway during 1999–2019. Acta Obstetricia et Gynecologica Scandinavica. 1-16.
  • Show author(s) (2022). Cesarean delivery in Norwegian nulliparous women with singleton cephalic term births, 1967–2020: a population-based study. BMC Pregnancy and Childbirth. 10 pages.
  • Show author(s) (2021). Risk of miscarriage in women with psychiatric disorders. British Journal of Psychiatry. 501-506.
  • Show author(s) (2021). Risk of miscarriage in women with chronic diseases in Norway: A registry linkage study. PLoS Medicine. 1-14.
  • Show author(s) (2021). Pregnancy Outcomes in Immigrant Women in Norway.
  • Show author(s) (2021). Placental Abruption by Maternal Country of Birth: a nationwide population-based study.
  • Show author(s) (2021). Obstetric outcomes in immigrant women in Norway.
  • Show author(s) (2021). Increasing prevalence of labour induction; has it had any impact on the prevalence of adverse pregnancy outcomes? A populations study in Norway 1999-2019.
  • Show author(s) (2021). Complications during pregnancy and childbirth in immigrant women giving birth in Norway.
  • Show author(s) (2021). Antall induksjoner øker – har det noen betydning for utfallet? .
  • Show author(s) (2020). Tensions and interplay: A qualitative study of access to patient-centered birth counseling of maternal cesarean requests in Norway. . Midwifery.
  • Show author(s) (2020). Probability and outcomes of second pregnancy after HELLP syndrome in the first: A population-based registry study. Acta Obstetricia et Gynecologica Scandinavica. 1206-1213.
  • Show author(s) (2020). Placental abruption in immigrant women in Norway: a population-based study. Acta Obstetricia et Gynecologica Scandinavica. 1-8.
  • Show author(s) (2020). Interpregnancy weight change and recurrence of gestational diabetes mellitus: a population-based cohort study. BJOG: An International Journal of Obstetrics and Gynaecology. 1608-1616.
  • Show author(s) (2019). Victims and addicts of biostatistics. Acta Obstetricia et Gynecologica Scandinavica. 1085.
  • Show author(s) (2019). Role of maternal age and pregnancy history in risk of miscarriage: prospective register based study. The BMJ. 8 pages.
  • Show author(s) (2019). Risk of having one lifetime pregnancy and modification by outcome of pregnancy and perinatal loss. Acta Obstetricia et Gynecologica Scandinavica. 753-760.
  • Show author(s) (2019). Maternal weight, weight change and perinatal outcomes: Can physical activity and gestational weight gain modify the risk?
  • Show author(s) (2019). Maternal reasons for requesting planned cesarean section in Norway: A qualitative study. BMC Pregnancy and Childbirth. 1-10.
  • Show author(s) (2019). Maternal complications in pregnancy and childbirth for women with epilepsy: time trends in a nationwide cohort. PLOS ONE. 1-14.
  • Show author(s) (2019). Lipid levels after childbirth and association with number of children: A population-based cohort study. PLOS ONE. 1-16.
  • Show author(s) (2018). Women's prepregnancy lipid levels and number of children: a Norwegian prospective population-based cohort study. BMJ Open. 9 pages.
  • Show author(s) (2018). The effect of parity on risk of complications in pregnant women with epilepsy: a population-based cohort study. Acta Obstetricia et Gynecologica Scandinavica. 1006-1014.
  • Show author(s) (2018). Risk of eclampsia or HELLP-syndrome by institution availability and place of delivery - A population-based cohort study. Pregnancy Hypertension. 1-8.
  • Show author(s) (2018). Risiko for peripartum perinatal død ved fødsler i fødestue. Tidsskrift for Den norske legeforening. 1213-1213.
  • Show author(s) (2018). Offspring birthweight by gestational age and parental cardiovascular mortality: a population-based cohort study. BJOG: An International Journal of Obstetrics and Gynaecology. 336-341.
  • Show author(s) (2018). Obstetric care in Norway - the role of institution availability and place of delivery for maternal and perinatal outcomes. Population-based retrospective cohort studies.
  • Show author(s) (2018). Obstetric and neonatal outcome in women aged 50 years and up: A collaborative, Nordic population-based study. European Journal of Obstetrics, Gynecology, and Reproductive Biology. 17-20.
  • Show author(s) (2018). Methodological challenges in studies in obstetrics and gynecology. Acta Obstetricia et Gynecologica Scandinavica. 369-370.
  • Show author(s) (2018). Maternal allergy as an isolated risk factor for early-onset preeclampsia: An epidemiological study. Journal of Reproductive Immunology. 43-47.
  • Show author(s) (2018). Hypertensive pregnancy complications in women with epilepsy and antiepileptic drugs; a population-based cohort study of first pregnancies in Norway. BMJ Open. 8 pages.
  • Show author(s) (2018). HELLP syndrome, risk factors in first and second pregnancy: a population-based cohort study. Acta Obstetricia et Gynecologica Scandinavica. 709-716.
  • Show author(s) (2018). Breastfeeding and long‐term maternal metabolic health in the HUNT Study: a longitudinal population‐based cohort study. BJOG: An International Journal of Obstetrics and Gynaecology. 526-534.
  • Show author(s) (2018). Breastfeeding and long-term metabolic health: consequence or reverse causality?
  • Show author(s) (2018). An international comparison of death classification at 22 to 25 weeks' gestational age. Pediatrics.
  • Show author(s) (2017). Vanishing twin syndrome among ART singletons and pregnancy outcomes. Human Reproduction. 2298-2304.
  • Show author(s) (2017). Reply. American Journal of Obstetrics and Gynecology. 495-496.
  • Show author(s) (2017). Increased risk of peripartum perinatal mortality in unplanned births outside an institution: a retrospective population-based study. American Journal of Obstetrics and Gynecology. 210.e1-210.e12.
  • Show author(s) (2017). Gestational diabetes mellitus and interpregnancy weight change: A population-based cohort study. PLoS Medicine. 19 pages.
  • Show author(s) (2016). Vaginal progesteronbehandling i graviditet forebygger ikke for tidlig fødsel. Tidsskrift for Den norske legeforening. 794-794.
  • Show author(s) (2016). Temporal trends in late preterm and early term birthrates in 6 high-income countries in North America and Europe and association with clinician-initiated obstetric interventions. Journal of the American Medical Association (JAMA). 410-419.
  • Show author(s) (2016). Maternal smoking status in successive pregnancies and risk of having a small for gestational age infant. Paediatric and Perinatal Epidemiology. 21-28.
  • Show author(s) (2016). Long-term mortality in mothers with perinatal losses and risk modification by surviving children and attained education: A population-based cohort study. BMJ Open. 8 pages.
  • Show author(s) (2016). Adverse infant outcomes associated with discordant gestational age estimates. Paediatric and Perinatal Epidemiology. 541-549.
  • Show author(s) (2015). Ultrasound prediction of perinatal outcome: the unrecognised value of sibling data. BJOG: An International Journal of Obstetrics and Gynaecology. 1674-1681.
  • Show author(s) (2015). Pre-pregnant body mass index and recreational physical activity: effects on perinatal mortality in a prospective pregnancy cohort. BJOG: An International Journal of Obstetrics and Gynaecology. 1322-1330.
  • Show author(s) (2015). Placental abruption and long-term maternal cardiovascular disease mortality: a population-based registry study in Norway and Sweden. European Journal of Epidemiology (EJE). 501-511.
  • Show author(s) (2015). Obstetric and neonatal outcome of pregnancies fathered by males on immunosuppression after solid organ transplantation. American Journal of Transplantation. 1666-1673.
  • Show author(s) (2015). Association of Women's Reproductive History with Long-term Mortality and Effect of Socioeconomic Factors. Obstetrics and Gynecology. 1181-1187.
  • Show author(s) (2015). Assfociations of perfluoroalkyl substances (PFAS) with lower birth weight: An evaluation of potential confounding by glomerular filtration rate using a physiologically based pharmacokinetic model (PBPK). Environmental Health Perspectives. 1317-1324.
  • Show author(s) (2014). Predicting risk of spontaneous preterm delivery in women with a singleton pregnancy. Paediatric and Perinatal Epidemiology. 11-22.
  • Show author(s) (2014). Perinatal mortality by gestational week and size at birth in singleton pregnancies at and beyond term: A nationwide population-based cohort study. BMC Pregnancy and Childbirth. 9 pages.
  • Show author(s) (2014). Maternal glomerular filtration rate in pregnancy and fetal size. PLOS ONE.
  • Show author(s) (2014). Availability and access in modern obstetric care: a retrospective population-based study. BJOG: An International Journal of Obstetrics and Gynaecology. 290-299.
  • Show author(s) (2013). X-chromosomal maternal and fetal SNPs and the risk of spontaneous preterm delivery in a Danish/Norwegian genome-wide association study. PLOS ONE. 11 pages.
  • Show author(s) (2013). Preterm Birth Genome Project (PGP) - Validation of resources for preterm birth genome-wide studies. Journal of Perinatal Medicine. 45-49.
  • Show author(s) (2013). Pre-pregnant body mass index, gestational weight gain and the risk of operative delivery. Acta Obstetricia et Gynecologica Scandinavica. 809-815.
  • Show author(s) (2013). Maternal solid organ transplantation and pregnancy outcome; a national population-based cohort study. American Journal of Obstetrics and Gynecology. S304-S304.
  • Show author(s) (2013). Availability and access in modern obstetric care: a retrospective population-based cohort study. BJOG: An International Journal of Obstetrics and Gynaecology. 412-413.
  • Show author(s) (2012). What is the price of proactive management in post term pregnancies? Acta Obstetricia et Gynecologica Scandinavica. 14-14.
  • Show author(s) (2012). Secular trends in the epidemiology of pre-eclampsia throughout 40 years in Norway: prevalence, risk factors and perinatal survival. Paediatric and Perinatal Epidemiology. 190-198.
  • Show author(s) (2012). Recurrence of Prolonged and Postterm Gestational Age Across Generations: Maternal and Paternal Contribution EDITORIAL COMMENT. Obstetrical and Gynecological Survey. 207-208.
  • Show author(s) (2012). Preterm birth: new data on a global health priority. The Lancet. 2128-2130.
  • Show author(s) (2012). Prepregnancy maternal body mass index and preterm delivery. American Journal of Obstetrics and Gynecology. 212.e1-212.e7.
  • Show author(s) (2012). Pre-pregnant body mass index, gestational weight gain and the risk of operative delivery. American Journal of Obstetrics and Gynecology. S76-S76.
  • Show author(s) (2012). Pre-pregnancy maternal body mass index, physical activity, nutrition, and preterm delivery. American Journal of Obstetrics and Gynecology. S47-S48.
  • Show author(s) (2012). No observed association for mitochondrial SNPs with preterm delivery and related outcomes. Pediatric Research. 539-544.
  • Show author(s) (2011). Risk of spontaneous preterm delivery in a low-risk population: the impact of maternal febrile episodes, urinary tract infection, pneumonia and ear-nose-throat infections. European Journal of Obstetrics, Gynecology, and Reproductive Biology. 310-314.
  • Show author(s) (2011). Recurrence of prolonged and post-term gestational age across generations: maternal and paternal contribution. BJOG: An International Journal of Obstetrics and Gynaecology. 1630-1635.
  • Show author(s) (2011). Preterm delivery in IVF versus ICSI singleton pregnancies: a national population-based cohort. European Journal of Obstetrics, Gynecology, and Reproductive Biology. 62-66.
  • Show author(s) (2011). Candidate gene analysis of spontaneous preterm delivery: New insights from re-analysis of a case-control study using case-parent triads and control-mother dyads. BMC Medical Genetics.
  • Show author(s) (2010). Time to focus on the public health aspects of preterm delivery. Acta Obstetricia et Gynecologica Scandinavica. 165-167.
  • Show author(s) (2010). Maternal and fetal genetic associations of PTGER3 and PON1 with preterm birth. PLOS ONE.
  • Show author(s) (2010). Caesarean section does not prevent cerebral palsy in singleton term breech infants. Developmental Medicine & Child Neurology. 684-685.
  • Show author(s) (2009). Quantification of Ureaplasma urealyticum DNA in the amniotic fluid from patients in PTL and pPROM and its relation to inflammatory cytokine levels. Acta Obstetricia et Gynecologica Scandinavica. 63-70.
  • Show author(s) (2008). Subgroups of preterm delivery in the Norwegian Mother and Child Cohort Study. Acta Obstetricia et Gynecologica Scandinavica. 1374-1377.
  • Show author(s) (2008). Reference population for international comparisons and time trend surveillance of preterm delivery proportions in three countries. BMC Women's Health.
  • Show author(s) (2006). Placenta accreta and methotrexate treatment. Acta Obstetricia et Gynecologica Scandinavica. 248-250.
  • Show author(s) (2006). Kortikosteroider i behandlingen av HELLP-syndrom? Tidsskrift for Den norske legeforening. 2253-2256.

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